George k



glltiteh tates glatent @ffice GEORGE KSMITH AND JOSEIH STASSER, OFALLEGHENY CITY,

PENNSYLVANIA. y

Letters Patent No. 73,550, (lated January 21, 1868.

IMPROVEMENT 1N PLOUGHS.

TO ALL WHOM II MAY OONOERN:

Be it known that we, GEORGE K. SMITH and JOSEPH Srnnssnn, of the cityand county of Allegheny, in the State of Pennsylvania, have invented anew and useful Improvement in Ploughs; and we do vhereby declare thatthe following is' a full and exact description tliei'cof, referencebeing had to the accompanying drawings, und to the letters and figuresof reference marked thereon.

The nature of our invention consists in elevating, depressing, andotherwise changing the position of the point of a plough-beam withrelation to the mould-board, by the use of the mcanshereinafterdescribed.

To enable others skilled in the art to -make and use our invention, wewill proceed to describe its construction and operation.v In theaccompanying drawings, which form part of our specification-- Figure 1is a perspective view of a plough provided with our improvement.

Figure 2 is a side view of the handle of a plough having a. low ornarrow landside, said handle being provided with our improved graduatefor regulating the elevation or depression of the point oftheplough-beam.

We construct the plough in any ot' the known forms; but we provide thebeam-standard A with a cap, B, the under iace of which is circular'inform, and provided with a tongue, 5. The cap B is fitted into a cavitymade in the upper end, X, of the standard A. The cap B is provided withan elongated slot or opening, to allow room for the motion of the cap,and for the bolt 8 of the beam D, in elevating and depressing its point.The back end ofthe beam D is held firmly to the cap O of the graduate C,by means of a bolt, 4, which passes up through a. slot',1, and beam D..The longitudinal plane of the slot 1 is at `right angle tothevlongitudinal plane of the beam D. The graduate C is bolted to theland-side e of the plough byvmeans of bolts 3, and is provided with twoslots or elongated openings, 2, which will allowfor raising or loweringit on the land-side e. The graduate O'can be applied to ploughs having anarrow or low land-side; in such case the graduate is secured to thehandle by means of bolts 6, as shown in tig. 2.

As the construction and arrangement of the several parts of ourimprovement will readily be seen and understood by the skillfulmechanic, by reference to the accompanying drawings, we will, withoutfurther description of its construction, proceed to describe itsoperation, which is as follows:

We raise or lower the point of the beam D by loosening up the bolts'Svand 3; we then adjust the graduate- C to suit the desired elevation' ordepression of the point ot' the beam D g we then secure the graduate toAthe land-side by means of the bolts 3;-we then tighten up the bolt 8v.We give the plough land in the ordinary manner.

We wish it clearly understood that we do not confine ourselves to theexact form ofthe capB and graduate O herein described, for the form ofthese may he varied and a similar result obtained.

Having thus described the nature, construction, and operation of ourimprovement, what we claim as of our invention, is i 1 The combinationot the graduate O with the beam D, constructed, arranged, and operatingas herein described, and for the purpose set forth.

2. The combihation of .the movable cap B with the beam D and graduateAG, constructed, arranged, and operating as herein describcdand for thepurpose set forth.

i -GEORGE K. SMITH, JOSEPH STRASSER.

Witnesses:

A. C. JOHNSTON, Janus J. JOHNSTON.

